/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file           : main.c
  * @brief          : Main program body
  ******************************************************************************
  * @attention
  *
  * Copyright (c) 2023 STMicroelectronics.
  * All rights reserved.
  *
  * This software is licensed under terms that can be found in the LICENSE file
  * in the root directory of this software component.
  * If no LICENSE file comes with this software, it is provided AS-IS.
  *
  ******************************************************************************
  */
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "i2c.h"
#include "gpio.h"
#include "fsmc.h"

/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "lcd.h"
#include "keyled.h"
#include "24cxx.h"
#include <stdio.h>
/* USER CODE END Includes */

/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */

/* USER CODE END PTD */

/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* USER CODE END PD */

/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */

/* USER CODE END PM */

/* Private variables ---------------------------------------------------------*/

/* USER CODE BEGIN PV */

/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
/* USER CODE BEGIN PFP */

/* USER CODE END PFP */

/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */

/* USER CODE END 0 */

/**
  * @brief  The application entry point.
  * @retval int
  */
int main(void)
{
  /* USER CODE BEGIN 1 */

  /* USER CODE END 1 */

  /* MCU Configuration--------------------------------------------------------*/

  /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
  HAL_Init();

  /* USER CODE BEGIN Init */

  /* USER CODE END Init */

  /* Configure the system clock */
  SystemClock_Config();

  /* USER CODE BEGIN SysInit */

  /* USER CODE END SysInit */

  /* Initialize all configured peripherals */
  MX_GPIO_Init();
  MX_FSMC_Init();
  MX_I2C1_Init();
  /* USER CODE BEGIN 2 */
  lcd_init();
  lcd_show_str(10, 0 * 20 + 10, 16, "Demo17_1:I2C Interface", RED);
  lcd_show_str(10, 1 * 20 + 10, 16, "24C02:EEPROM, 256 bytes", RED);
  lcd_show_str(10, 2 * 20 + 10, 16, "8 bytes/page, 32pages", RED);
  lcd_show_str(10, 3 * 20 + 10, 16, "I2C Device Address = 0xA0", RED);
  if (EP24C_IsDeviceReady() == HAL_OK) {
	  lcd_show_str(10, 4 * 20 + 10, 16, "Device is ready.", RED);
  }
  lcd_show_str(10, 5 * 20 + 10, 16, "[1] KeyUp    = Write a number", RED);
  lcd_show_str(10, 6 * 20 + 10, 16, "[2] KeyDown  = Read the number", RED);
  lcd_show_str(10, 7 * 20 + 10, 16, "[3] KeyLeft  = Write a String", RED);
  lcd_show_str(10, 8 * 20 + 10, 16, "[4] KeyRight = Read the String", RED);
  /* USER CODE END 2 */

  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
  uint8_t num1 = 107, num2;
  uint16_t addr_any = 4;
  uint16_t addr_page = 2*8;
  uint8_t infoStr[50];
  while (1)
  {
	  KEYS curKey = ScanPressedKey(KEY_WAIT_ALWAYS);
	  switch (curKey) {
		  case KEY_UP:
			  if (EP24C_WriteOneByte(addr_any, num1) == HAL_OK) {
				  lcd_fill(10, 10 * 20 + 10, 479, 12 * 20 + 10, WHITE);
				  sprintf(infoStr, "Write %d at Address %d\0", num1, addr_any);
				  lcd_show_str(10, 10 * 20 + 10, 16, infoStr, RED);
			  }
			  break;
		  case KEY_DOWN:
			  if (EP24C_ReadOneByte(addr_any, &num2) == HAL_OK) {
				  lcd_fill(10, 10 * 20 + 10, 479, 12 * 20 + 10, WHITE);
				  sprintf(infoStr, "Read out %d at Address %d\0", num2, addr_any);
				  lcd_show_str(10, 10 * 20 + 10, 16, infoStr, RED);
			  }
			  break;
		  case KEY_LEFT:
		  {
			  uint8_t strIn[] = "University of Petroleum";
			  if (EP24C_WriteLongData(addr_page, strIn, sizeof(strIn)) == HAL_OK) {
				  lcd_fill(10, 10 * 20 + 10, 479, 12 * 20 + 10, WHITE);
				  lcd_show_str(10, 10 * 20 + 10, 16, "Write string from Page 2:", RED);
				  lcd_show_str(10, 11 * 20 + 10, 16, strIn, RED);
			  }
			  break;
		  }
		  case KEY_RIGHT:
		  {
			  uint8_t strOut[50];
			  if (EP24C_ReadBytes(addr_page, strOut, 50) == HAL_OK) {
				  lcd_fill(10, 10 * 20 + 10, 479, 12 * 20 + 10, WHITE);
				  lcd_show_str(10, 10 * 20 + 10, 16, "Read string from Page 2:", RED);
				  lcd_show_str(10, 11 * 20 + 10, 16, strOut, RED);
			  }
			  break;
		  }
	  }

	  lcd_show_str(10, 13 * 20 + 10, 16, "**Reselect menu or reset**", RED);
	  HAL_Delay(500);
    /* USER CODE END WHILE */

    /* USER CODE BEGIN 3 */
  }
  /* USER CODE END 3 */
}

/**
  * @brief System Clock Configuration
  * @retval None
  */
void SystemClock_Config(void)
{
  RCC_OscInitTypeDef RCC_OscInitStruct = {0};
  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};

  /** Configure the main internal regulator output voltage
  */
  __HAL_RCC_PWR_CLK_ENABLE();
  __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);

  /** Initializes the RCC Oscillators according to the specified parameters
  * in the RCC_OscInitTypeDef structure.
  */
  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
  RCC_OscInitStruct.HSEState = RCC_HSE_ON;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
  RCC_OscInitStruct.PLL.PLLM = 4;
  RCC_OscInitStruct.PLL.PLLN = 168;
  RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
  RCC_OscInitStruct.PLL.PLLQ = 4;
  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
  {
    Error_Handler();
  }

  /** Initializes the CPU, AHB and APB buses clocks
  */
  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
                              |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4;
  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;

  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5) != HAL_OK)
  {
    Error_Handler();
  }
}

/* USER CODE BEGIN 4 */

/* USER CODE END 4 */

/**
  * @brief  This function is executed in case of error occurrence.
  * @retval None
  */
void Error_Handler(void)
{
  /* USER CODE BEGIN Error_Handler_Debug */
  /* User can add his own implementation to report the HAL error return state */
  __disable_irq();
  while (1)
  {
  }
  /* USER CODE END Error_Handler_Debug */
}

#ifdef  USE_FULL_ASSERT
/**
  * @brief  Reports the name of the source file and the source line number
  *         where the assert_param error has occurred.
  * @param  file: pointer to the source file name
  * @param  line: assert_param error line source number
  * @retval None
  */
void assert_failed(uint8_t *file, uint32_t line)
{
  /* USER CODE BEGIN 6 */
  /* User can add his own implementation to report the file name and line number,
     ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
  /* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */
